Road-making machinery



J. W. McLAREN.

ROAD MAKING MACHINERY.

APPLICATION FILED MAR. 23. 1918.

1,369,977, Patented Mar. 1, 1921.

3 SHEETS-SHEET I" 3 SHEETS-SHEET 2- Patented Mar. 1, 1921.

J. W. McLAREN. ROAD MAKING MACHlNERY.- APPLICATION FILED MAR.23,-1918.

J. W. MCLAREN.

7 ROAD MAKING MACHINERY.

' APPLICATION. FILED MAR. 23,1918- 1 ,369,977, Patented Mar. 1, 1921 3 SHEETS-SHEET 3- NITQED sA'rEs JAMES W. MGLAREN, 0F MARIET'IA, OHIO. i

PATENT ounce.

ROAD-MAKING MACHINERY.

Application filed March 23, 1918. Serial No. 224,163.

To all whom it mag concern;

Be it known thatLI, JAMES W. MCLAREN,

a citizen of the United States, residing at Marietta, in the county of Washington and State of Ohio, have invented certain new and useful Improvements in Road-Making Machinery, of which the following is a specification.

My invention relates to road making machinery and comprises a roller construction adapted to impart a hard smooth plane surface or a convex or a concave surface to a roadway and to provide berms and ditches and sloping lateral banks for the roadway. The supporting wheels are adapted to assist in the rolling which is done primarily by a plurality of vertically adjustable and axian additional axle or axles is provided is to produce waves in the surface and when started the continuing action of the rolling machine usually intensifies them.

Further the drivingipower is distributed to act on allthe wheels. to minify the disturbance of the material under the wheels due to the torque resulting from the wheel movement thereover. 'Also by using a plurality of rollers or idlers one may be so set or adjusted as to releive the weight on the appropriate wheel in passing over a soft spot' in the surface until the wholesurface has been brought to the same plane and to a harmonious consistency. When the third or fourth axle is used the lineal weight per square inch of wheel contact is so reduced that it is unfit for compacting a road surface, while with my apparatus I firstreduce the weight per square inch of wheel contact until the road surface is smooth and partly compact. By raising the idlers or rollers the unit weight of wheel contact is greatly increased.

The maximum compression of lineal weight per square inch of wheel contact is produced by lowering the rollers sufficiently to carry the weight of the "end of the machine; this gives the machine a bearing of Specification of Letters Patent.

Patented Mar. 1, 1921.

three wheels as the rollers of structed.

My devices may also be utilized in smoothing down old brick pavement roadways and to restore them to their: original smooth surface as far as possible after the, freezing and thawing of the winter season have worked their usual distorting effect. This operation can best be carried on as-the frost is leaving the ground in the spring.

The Figures 1 to 10 inclusive are diagrammatic views of the machine showing a today are con variety of arrangement and number of the rollers in the figures to and including Fig. 4 in Fig. 5 the rollers aredepressed to op-- crate transversely on a concave surface, in F ig. 6 the rollers are vertically retracted to operate transversely on a convex surface, in Fig. 7 the rollers are constructed and arranged to operate lineally on a concave surface, in Fig. 8 the rollers are axially reversed to operate lineally on a convex surface; in.

Fig. 9 the machine is shown moving around a curve; in Fig. 10 the trucks are shown in echelon or staggered formation whereby the machine is adapted to bring all the power of the rollers to bear on the sloping lateral bank of the roadway, and devices are hereinafter described for actuating the parts to assume the illustrated positions and for maintaining such positions while the rolling operation is proceeding. Fig. 11 is a top view of the machine without the sides Fig. 12 is a longitudinal vertical section along the line A-B in Fig. 11; Fig. 13 is a top view of a modified construction wherein the front and rear fifth wheels are shown enlarged to embrace the driving wheels, and a side frame is shown lowered carrying a scraper blade thereon; Fig. 14 is anenlarged view of the steering and truck positioning device; Fig. 15 is an enlarged view of the transmission mechanism.

Referring to the drawings, 1 is the center frame or girders, 2 is the axle with the, wheels 3, 4 thereon, 5 is an axle with the wheels 6, 7 thereon, 8 is the frame on which -the roller 9 is suspended, 10 and 11 are sented as diagrammatic showings, and Figs.

11 to 15 inclusive embody a physical structure. based on the diagrammatic showing ,gear 27; 31 is the other especially in Figs. 3 and 3 to which the ensuing description primarily refers however other diagrammatic showings are contemplated in the description and claims wherever the language is pertinent. For instance, the showing in Figs. 9 and 10, or 7 and 8 are illustrative of the structure indicated in Figs. 3 and' 3*.

Throughout the specification wherever the term carriage is. employed it comprehends the supporting-wheels and their connecting axle andnecessary associated structure for supporting amend-of the apparatus. Qonsequently in Figs. 3 and 3 one end carriage is shown at 6 including the wheels f and g, the axleh, and the fifth wheel and connected structure represented at z'. A similar structure is of course seen at the other end of the vehicle but the parts are not marked.

Aithough operative structure and connection are not illustrated in the figures in question, yet it will be understood that they are diagrammatic representations shown for the sake of simplicity and to portray an idea merely, and the physical embodiment of this idea is illustrated in the figures on the following sheet of drawings. Referring now to Fig. 11 and following, 22 is the parallel girders composing the center frame of the machine, 23, 24 are heavy plates provided for receiving the heads 25, 30. of the king bolts, 26 is an axle, 27' is the driving gear thereon, 28 is a wheel and 29 is a stay rod supporting the casing inclosing thedriving axle carrying the driving gear 32, 33 is a wheel and 34 is a stay rod supporting the casing inclosing the gear 32. The englne 35 drives the gear 36 meshing with the gear 37 actuating differential 38 which in turn drives the gear 39, all mounted on shaft 40, which carries the worm 41 thereon to mesh with the driving gear 27 on axle 26, while the telescoping joint appears at 40 and a universal joint rovided in the shaft 40 appears at 40". he same construction identically indicated appears at the other end of the driving shaft, and the worm 42 thereon meshes with the driving gear 32 on the axle indicated at 31.

At 43 is a gear mounted on shaft 40 controlled by the clutch 43? actuatedby the lever 43* to set the gear 43 running withthe shaft 40, whereupon gear 44 on shaft 47 is actuated, and when clutched-through the manipulation of the lever 44**- and clutch 44 drives shaft 47. the gear 45 locked to the shaft by means of the clutch 45 whereupon said gear actuates gear 46 on shaft47- locked thereto by the use of the clutch 461 By means of the clutches On shaft 40 is also carried' when one is in the other is out-the gears are turned in opposite directions which,

causes the roller to run forward or back- .ward with equal ease. Shaft 47 at one end carries the gear 48 and at the other end the gear 49, adapted to mesh respectively with the racks formed on the turn-tables 50, 51.

. Gear 49 is locked to the shaft 47 by the clutch 52 actuated by the lever 53 through the rod 53 controlled by the lever at 53"; lever 53 is pivoted at 54 and is connected pivotally at 56 with the block 57 having the tooth 58 adapted to enter the opening 59 in the turn-table 51, to lock the said turn-table in any position to which it may have been rotated through the gear 49 and associated mechanism described above. By this means the truck is first directed as desired and then fixed in the desired position to effect the staggering shown in Fig. 10; the other truck 1s slmilarly manipulated and controll'ed through the mechanism appearing at 60, 61,

but when not locked the gears 48, 49 are revolved in the same direction, causing the wheels to track; or one truck can be set at any angle and the gears 48, 49 being kept running in the same direction the staggered position will be created. Or one of the carriages may be positioned at such angle with the center girder structure as desired and the steering may be done by manipulating the devices controlling the other carriage; manifestly the vehicle may be steered from either end thereof as desired.- The wheels, as 28, may be made axially reversible to produce desired rolling effects, it being apparent that'ordinarily the edge portions of the surface being rolled will be under the rolling influence of the four wheels rather than of the intermediate rollers.

Rollers are shown at 62, 63, 64, journaled in'the frames 65, 66, pivotally supported at 65*. These frames are each toothed or provided with a rack as appears at 65*, and are adapted to be actuated up and down through the worms or screws respectively shown at 65 and 66 Worm 66 is operatively connected with the bevel gear 67 adapted to mesh with the gear 67 3 carried on the lateral shaft 67 b driven by the bevel .68 thereon enmeshed with the gear 68 on. the shaft 47, driven through the transmission mechanism above described. A similar mechanism for manipulating the frame 65 to position the rollers 63, 64 through the rack 65 is providedbut not here shown in detail.

Referring now to Fig. 13, therein are grader 7 2 the rollers 62, 63, 64 having first been removed. These modifiedforms may be introduced when more power or compactness is desired in the construction for particular kinds of work.

What I claim is 1. Automobile road making machinery comprising carriages connected by a center girder, devices carried thereon for positioning said carriages in staggered relation to each other, and means carried thereon for locking the same in said position during the operation of the vehicle, and rollers carried by said center girder adapted to contact with the surface to be operated upon.

2. Automobile road making machinery comprising carriages connected by a center girder, devices carried thereon for positioning said carriage-s in staggered relation to each other, and means carried thereon for locking the same in said position, and rollers carried by said center girder and means for rendering said rollers vertically adjustable to increase or diminish the pressure thereby exercised upon the surface of the roadway. 3. Automobile road -making machinery comprising carriages connected by a center girder, frames disposed on sa d girder, rollers mounted in said frames, and means adapted to adjust said frames vertically.

4. Automobile. road making machinery comprising carriages connected by a center girder, frames disposed on said girder, rollers mounted on said frames, a rack formed on each of said frames, a worm adapted to engage each of said racks, and means for operating said worm to accomplish the vertical adjustment of each of said frames.

5. An automobile road-rolling apparatus comprising carriages having wheels constructed also for rolling purposes, a center girder connecting said carriages, provision for suspending one or more rollers from said center 'girder intermediate said carriages, and means for vertically adjusting the position of said roller or rollers.

6. An automobile road-rolling apparatus comprising carriages having wheels constructed also for rolling purposes, a center girder connecting said carriages, axially reversible rollers depending from said center girder intermedate said 0 riages, and means for vertically adjusting roller or rollers. 4

7. An automobile road making vehicle comprising swiveled end carriages therefor connected by a center girder, turn tables e position of said carried upon said center girder, means for manipulating sai'd turn tables to position said carriages, and means for locking said turn tables to maintain said carriages in the desired positions.

7 8. An automobile road making vehicle comprising swiveled end carriages therefor connected by a center girder, turn tables carried upon said center girder, means for manipulating said turn tables to position said carriages, and means for locking said turn tables to maintain said carriages in the desired positions and simultaneously neutralizing said manipulating means.

9. An automobile road making vehicle comprising swiveled end carriages connected by a center girder, turn tables mounted thereon, frames supported on said center girder, rollers carried in said frames, and separate means actuated by the vehicle motive power to transmit motion to the said wheels, to actuate said turn tables, and to position said frames.

10. An automobile road making vehicle comprising supporting end carrla es connected by a center girder, pivote frames carried by said girder, a road roller supported by each of said frames, means for actuating said frames independentlyof each other whereby said rollers are severally positioned to bear upon the roadway with the degree of pressure desired.

11. An automobile road rolling apparatus comprising two carriages preferably each having two wheels thereon adapted both for carrying and rolling purposes, said wheels being axially reversible to produce desired rolling effects, a center girder structure uniting said carriages, a plurality of rollers suspended. from said center girder intermediate,

Witnesses:

- DAVID H. THOMAS,

HELENE HoLz.

JAMES W. MoLAREN. 1 

